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1、a Date: 29 January 2008 Origin: European Latest date for receipt of comments: 30 April 2008 Project no.: 2008/00357 Responsible committee: GEL/112 Evaluation and qualification of electrical insulating materials and systems Interested committees: Title: Draft BS EN 61858 Electrical insulation systems
2、 - Thermal evaluation of modifications to an established wire-wound EIS Supersession information: If this document is published as a standard, the UK implementation of it will supersede BSEN61858 : 2005 and partially supersede. NONE If you are aware of a current national standard which may be affect
3、ed, please notify the secretary (contact details below). WARNING: THIS IS A DRAFT AND MUST NOT BE REGARDED OR USED AS A BRITISH STANDARD. THIS DRAFT IS NOT CURRENT BEYOND 30 April 2008. This draft is issued to allow comments from interested parties; all comments will be given consideration prior to
4、publication. No acknowledgement will normally be sent. See overleaf for information on commenting. No copying is allowed, in any form, without prior written permission from BSI except as permitted under the Copyright, Designs and Patent Act 1988 or for circulation within a nominating organization fo
5、r briefing purposes. Electronic circulation is limited to dissemination by e-mail within such an organization by committee members. Further copies of this draft may be purchased from BSI Customer Services, Tel: +44(0) 20 8996 9001 or email ordersbsi-. British, International and foreign standards are
6、 also available from BSI Customer Services. Information on the co-operating organizations represented on the committees referenced above may be obtained from the responsible committee secretary. Cross-references The British Standards which implement International or European publications referred to
7、 in this draft may be found via the British Standards Online Service on the BSI web site http:/www.bsi-. Direct tel: 020 8996 7009 Responsible Committee Secretary: Committee Service Centre (BSI) E-mail: cscbsi- Draft for Public Comment Head Office 389 Chiswick High Road London W4 4AL Telephone: +44(
8、0)20 8996 9000 Fax: +44(0)20 8996 7001 Form 36 Version 7.0 DPC: 08/30177151 DC Licensed Copy: London South Bank University, London South Bank University, Fri Feb 15 06:48:23 GMT+00:00 2008, Uncontrolled Copy, (c) BSI b Introduction This draft standard is based on European discussions in which the UK
9、 took an active part. Your comments on this draft are welcome and will assist in the preparation of the consequent British Standard. If no comments are received to the contrary, then the UK will approve this draft and implement it as a British Standard. Comment is particularly welcome on national le
10、gislative or similar deviations that may be necessary. Even if this draft standard is not approved by the UK, if it receives the necessary support in Europe, the UK will be obliged to publish the official English Language text unchanged as a British Standard and to withdraw any conflicting standard.
11、 UK Vote Please indicate whether you consider the UK should submit a negative (with reasons) or positive vote on this draft. Submission The guidance given below is intended to ensure that all comments receive efficient and appropriate attention by the responsible BSI committee. Annotated drafts are
12、not acceptable and will be rejected. All comments must be submitted, preferably electronically, to the Responsible Committee Secretary at the address given on the front cover. Comments should be compatible with Version 6.0 or Version 97 of Microsoft Word for Windows, if possible; otherwise comments
13、in ASCII text format are acceptable. Any comments not submitted electronically should still adhere to these format requirements. All comments submitted should be presented as given in the example below. Further information on submitting comments and how to obtain a blank electronic version of a comm
14、ent form are available from the BSI web site at: http:/www.bsi- Template for comments and secretariat observations Date: xx/xx/200x Document: ISO/DIS xxxxx 1 2 (3) 4 5 (6) (7) MB Clause No./ Subclause No./ Annex (e.g. 3.1) Paragraph/ Figure/Table/ Note (e.g. Table 1) Type of com- ment Comment (justi
15、fication for change) by the MB Proposed change by the MB Secretariat observations on each comment submitted 3.1 Definition 1 ed Definition is ambiguous and needs clarifying. Amend to read . so that the mains connector to which no connection . 6.4 Paragraph 2 te The use of the UV photometer as an alt
16、ernative cannot be supported as serious problems have been encountered in its use in the UK. Delete reference to UV photometer. Microsoft and MS-DOS are registered trademarks, and Windows is a trademark of Microsoft Corporation. Licensed Copy: London South Bank University, London South Bank Universi
17、ty, Fri Feb 15 06:48:23 GMT+00:00 2008, Uncontrolled Copy, (c) BSI FORM CDV (IEC) 2005-09-23 112/90/CDV COMMITTEE DRAFT FOR VOTE (CDV) PROJET DE COMIT POUR VOTE (CDV) Project number 61858 Ed. 3.0 Numro de projet IEC/TC or SC: 112 CEI/CE ou SC: Secretariat / Secrtariat Germany Submitted for parallel
18、voting in CENELEC Soumis au vote parallle au CENELEC Date of circulation Date de diffusion 2008-01-25 Closing date for voting (Voting mandatory for P-members) Date de clture du vote (Vote obligatoire pour les membres (P) 2008-06-27 Also of interest to the following committees Intresse galement les c
19、omits suivants Supersedes document Remplace le document 112/87/MCR Functions concerned Fonctions concernes Safety Scurit EMC CEM Environment Environnement Quality assurance Assurance qualit CE DOCUMENT EST TOUJOURS LTUDE ET SUSCEPTIBLE DE MODIFICATION. IL NE PEUT SERVIR DE RFRENCE. LES RCIPIENDAIRES
20、 DU PRSENT DOCUMENT SONT INVITS PRSENTER, AVEC LEURS OBSERVATIONS, LA NOTIFICATION DES DROITS DE PROPRIT DONT ILS AURAIENT VENTUELLEMENT CONNAISSANCE ET FOURNIR UNE DOCUMENTATION EXPLICATIVE. THIS DOCUMENT IS STILL UNDER STUDY AND SUBJECT TO CHANGE. IT SHOULD NOT BE USED FOR REFERENCE PURPOSES. RECI
21、PIENTS OF THIS DOCUMENT ARE INVITED TO SUBMIT, WITH THEIR COMMENTS, NOTIFICATION OF ANY RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE AND TO PROVIDE SUPPORTING DOCUMENTATION. Titre : CEI 61858 Ed. 3.0 : Systmes disolation lectrique Evaluation thermique des modifications apportes un systme disolatio
22、n lectrique prouv enroulements fil Title : IEC 61858 Ed. 3.0: Electrical insulation systems - Thermal evaluation of modifications to an established wire-wound EIS Note dintroduction Introductory note ATTENTION VOTE PARALLLE CEI CENELEC Lattention des Comits nationaux de la CEI, membres du CENELEC, e
23、st attire sur le fait que ce projet de comit pour vote (CDV) de Norme internationale est soumis au vote parallle. Un bulletin de vote spar pour le vote CENELEC leur sera envoy par le Secrtariat Central du CENELEC. ATTENTION IEC CENELEC PARALLEL VOTING The attention of IEC National Committees, member
24、s of CENELEC, is drawn to the fact that this Committee Draft for Vote (CDV) for an International Standard is submitted for parallel voting. A separate form for CENELEC voting will be sent to them by the CENELEC Central Secretariat. Copyright 2008 International Electrotechnical Commission, IEC. All r
25、ights reserved. It is permitted to download this electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions. You may not copy or “mirror“ the file or printed version of the document, or any part of it, for any other purpose without per
26、mission in writing from IEC. Licensed Copy: London South Bank University, London South Bank University, Fri Feb 15 06:48:23 GMT+00:00 2008, Uncontrolled Copy, (c) BSI 61858 IEC 2 112/90/CDV CONTENTS FOREWORD.5 INTRODUCTION.5 1 Scope.6 2 Normative references .6 3 Terms and definitions .7 4 General co
27、nsiderations.7 5 Evaluation of the change of thickness of an EIM.9 5.1 Samples9 5.2 Acceptance .9 6 Substitution of winding wire 9 6.1 General.9 6.2 Substitution of enamel.9 6.3 Substitution of conductor material .9 6.4 Alternate winding wire .10 7 Substitution of impregnating resin/varnish 10 7.1 T
28、hermal class determination10 7.2 Evaluation .10 8 Substitution with other EIM.11 8.1 Technically equivalent materials11 8.2 Previous evaluation.11 8.3 Other.11 9 Evaluation of additions .11 9.1 Addition of an impregnating resin/varnish11 9.2 Addition of other components 12 10 Single-point thermal ag
29、eing test .12 10.1 Test objects.12 10.2 Establishing the relative thermal endurance index (RTE).12 10.3 Interpretation of results .13 Annex A (normative) Classes of winding wire.14 Annex B (normative) Compatibility test procedure15 Figure 1 Overview of evaluation methods.8 Table 1 Thermal ageing tes
30、t methods for resin/varnishes.10 Table A.1 Winding wire types.14 Licensed Copy: London South Bank University, London South Bank University, Fri Feb 15 06:48:23 GMT+00:00 2008, Uncontrolled Copy, (c) BSI 61858 IEC 3 112/90/CDV INTERNATIONAL ELECTROTECHNICAL COMMISSION _ ELECTRICAL INSULATION SYSTEMS
31、THERMAL EVALUATION OF MODIFICATIONS TO AN ESTABLISHED WIRE-WOUND EIS FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote internat
32、ional co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter r
33、eferred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non- governmental organizations liaising with the IEC also participat
34、e in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an inte
35、rnational consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reaso
36、nable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC
37、 Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC provides no marking procedure to indicate its app
38、roval and cannot be rendered responsible for any equipment declared to be in conformity with an IEC Publication. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual
39、experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this I
40、EC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this I
41、EC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 61858 has been prepared by IEC technical committee 112: Evaluation and qualification of electrical insulating materials and systems. This th
42、ird edition cancels and replaces the second edition, published in 2004, and constitutes editorial revisions. The text of this standard is based on the following documents: FDIS Report on voting Full information on the voting for the approval of this standard can be found in the report on voting indi
43、cated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. Licensed Copy: London South Bank University, London South Bank University, Fri Feb 15 06:48:23 GMT+00:00 2008, Uncontrolled Copy, (c) BSI 61858 IEC 4 112/90/CDV The committee has decided th
44、at the contents of this publication will remain unchanged until the maintenance result date1 indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed; withdrawn; replaced by a revised edition, or am
45、ended. . 1 The National Committees are requested to note that for this publication the maintenance result date is 2013 Licensed Copy: London South Bank University, London South Bank University, Fri Feb 15 06:48:23 GMT+00:00 2008, Uncontrolled Copy, (c) BSI 61858 IEC 5 112/90/CDV INTRODUCTION This In
46、ternational Standard describes procedures for the evaluation of changes to an established electrical insulation system (EIS) for wire-wound electrotechnical devices and the effect of these changes on the thermal classification of the established EIS. General principles for evaluation and qualificati
47、on of EIS can be found in IEC 60505. Unless the procedures of this standard indicate otherwise, the principles of IEC 60505 should be followed. The thermal classification of an EIS is established either by known service life, in accordance with IEC 60791, or evaluated in accordance with IEC 61857 (a
48、ll parts). Licensed Copy: London South Bank University, London South Bank University, Fri Feb 15 06:48:23 GMT+00:00 2008, Uncontrolled Copy, (c) BSI 61858 IEC 6 112/90/CDV ELECTRICAL INSULATION SYSTEMS THERMAL EVALUATION OF MODIFICATIONS TO AN ESTABLISHED WIRE-WOUND EIS 1 Scope This International St
49、andard lists the required test procedures for qualification of modifications of an established electrical insulation system (EIS) with respect to its thermal classification. This standard is applicable to EIS used in wire-wound electrotechnical devices. The test procedures are comparative in that the performance of a candidate EIS is compared to that of